Commercial Break: The drink ad that's the Pitt's

What the hell was he thinking of when he appeared in this Japanese ad for a caffeinated drink in 2006?

If he’s in his own in the office, he’s obviously working late, presumably trying to clear a backlog. So why is he arseing, about scooting around the place on his chair before putting the bin on his head?

What made the makers of this ad belive that we would buy into the idea that Brad Pitt is a lowly office worker?